<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="icon_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!-- 登录表单区 -->
      <el-form class="login_from" ref="loginForm" :model="loginForm" :rules="loginFormRules" label-width="0">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input type="password" prefix-icon="iconfont icon-3702mima" v-model="loginForm.password"></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
import {request} from '../axios/request';
export default {
  name:'Login',
  data(){
    return {
      // 这是登录表单的数据绑定对象
      loginForm:{
        username: 'admin',
        password: '123456'
      },
      // 表单验证规则对象
      loginFormRules:{
        // 验证用户名是否合法
        username:[
          {required:true,message:'请输入登录名称',trigger:'blur'},
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password:[
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods:{
    resetLoginForm(){
      this.$refs.loginForm.resetFields()
    },
    login(){
      this.$refs.loginForm.validate(async valid =>{
        if(!valid) return
        await request().post('login',this.loginForm).then(res =>{
         if(res.data.meta.status !==200) return this.$message.error('登录失败');
         this.$message.success('登录成功');
         // 1. 将登录成功之后的 token，保存到客户端的 sessionStorage 中
         //1.1 项目中出了登录之外的其他API接口，必须在登录之后才能访问
         //1.2 token 只应在当前网站打开期间生效，所以将 token 保存在 sessionStorage 中
         window.sessionStorage.setItem('token',res.data.data.token);
         this.$router.push('/home');
       });
     })
    }
  },
}
</script>
<style lang="less" scoped>
  .login_container{
    background-color: #2b4b6b;
    height: 100%;
    position: relative;
  }
  .login_box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position:absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);

    .icon_box{
      height: 130px;
      width: 130px;
      border:1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform:translate(-50%,-50%);
      background-color: #fff;

      img{
        height: 100%;
        width:100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }
  }
  .login_from{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }
  .btns{
    display: flex;
    justify-content: flex-end;
  }
</style>